What Is Propylene Glycol? - Keller-Heartt

Propylene glycol is used by the chemical, food, and pharmaceutical industries as an antifreeze when leakage might lead to contact with food. The Food and Drug Administration (FDA) has classified propylene glycol as an additive that is generally recognized as safe for use in food.

Super Tech RV & Marine Antifreeze - Walmart

Propylene glycol has been used successfully for decades also in vehicle radiators. It's a far safer and eco alternative to dangerous mass-market ethylene glycol (traditional vehicle antifreeze)--which, unfortunately critters, pets, and even humans find sweet.

Sierra Antifreeze & Coolant from PEAK | Environmentally .

PEAK® is the pioneer and market leader in the safer propylene glycol (PG) antifreeze category. SIERRA® Antifreeze/Coolant is formulated with PG rather than ethylene glycol – the base for traditional antifreeze. Because of its PG formula, SIERRA® Antifreeze is less toxic and therefore safer for people, pets, and wildlife than conventional .